Aquatic Sciences

, Volume 65, Issue 4, pp 320–341 | Cite as

Photodegradation of pharmaceuticals in the aquatic environment: A review

  • Anne L. Boreen
  • William A. ArnoldEmail author
  • Kristopher McNeillEmail author
Review Article


A review with 310 references. Photochemical degradation is likely to be an important loss mechanism for many pharmaceutical pollutants in surface waters. This review summarizes the current knowledge of the photochemical behavior of pharmaceuticals and highlights the use of the fundamental photochemistry and phototoxicity literature to help understand and predict the aquatic fate of pharmaceuticals. Naproxen and diclofenac are shown to exemplify the idea that photochemical behavior obtained from fundamental photochemistry studies can be related to environmental conditions. There are, however, numerous compounds that have been found in environmental matrices for which no photochemistry data relatable to environmental conditions are available. It will be necessary to combine the results available in the large body of fundamental photochemistry and phototoxicity literature with laboratory and field experiments designed to determine direct and indirect photolysis rates and to identify photoproducts. This course will lead to a thorough understanding of the role of photodegradation on the fate and impact of pharmaceutical pollutants.

Key words.

Photochemistry Pharmaceuticals and Personal Care Products (PPCPs) Environmental fate 


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Supplementary material

Table_A1.pdf (366 kb)
Supplementary material

Copyright information

© EAWAG 2003

Authors and Affiliations

  1. 1.Department of ChemistryUniversity of MinnesotaMinneapolisUSA
  2. 2.Department of Civil EngineeringUniversity of MinnesotaMinneapolisUSA

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